CN220849865U - Double-oil tank fuel supply system for motorcycle - Google Patents
Double-oil tank fuel supply system for motorcycle Download PDFInfo
- Publication number
- CN220849865U CN220849865U CN202322598537.XU CN202322598537U CN220849865U CN 220849865 U CN220849865 U CN 220849865U CN 202322598537 U CN202322598537 U CN 202322598537U CN 220849865 U CN220849865 U CN 220849865U
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- oil
- tank
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- pump
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- 239000000446 fuel Substances 0.000 title claims abstract description 81
- 239000002828 fuel tank Substances 0.000 claims abstract description 35
- 239000003921 oil Substances 0.000 claims description 144
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 239000000295 fuel oil Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 5
- 239000000945 filler Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses a motorcycle double-fuel-tank fuel supply system, which relates to the technical field of motorcycle fuel tanks, and comprises a main fuel tank, an auxiliary fuel tank and an oil pump, wherein the auxiliary fuel tank is provided with an auxiliary fuel tank oil outlet pipe for supplying fuel to the main fuel tank and an auxiliary fuel tank oil return pipe for returning the main fuel tank to the auxiliary fuel tank; aiming at the asymmetric double-oil-tank structure with the height difference, only one oil pump is needed to be arranged in the main oil tank, and the oil pump is not needed to be arranged in the auxiliary oil tank, so that the system cost is reduced.
Description
Technical Field
The utility model relates to the technical field of road cleaning, in particular to a motorcycle double-oil-tank fuel supply system.
Background
The traditional motorcycle type oil supply system generally adopts a mode of supplying oil to an engine by a single oil pump, but aiming at the conditions of large discharge capacity and high oil consumption, a large-flow oil pump is required to be selected in order to meet the requirement of high oil consumption of the engine, and the oil pump has the defects of very few resources, very high cost, large working noise, poor reliability, short service life and the like, so that a second oil tank is added for increasing the endurance mileage of the motorcycle; the arrangement of the double oil tanks is divided into two types, namely, the arrangement is left-right symmetrical, the two oil tanks are communicated through a pipeline, and only one oil pump is arranged in one oil tank; the second type of asymmetrical arrangement, for which two tanks of such an arrangement may store a height difference, is known in which one oil pump is installed in each of the two tanks, increasing the overall cost.
Disclosure of Invention
In view of the above, the present utility model aims to provide a motorcycle double-tank fuel supply system, which is designed specifically for an asymmetric double-tank with a height difference, so as to reduce the system cost.
The utility model provides a motorcycle double-oil-tank fuel oil supply system, which adopts the following technical scheme:
The utility model provides a two oil tank fuel feed system of motorcycle, includes main tank, bellytank and oil pump, be equipped with the bellytank play oil pipe that is used for supplying oil to main tank and the bellytank returns oil pipe that main tank returned oil to bellytank on the bellytank, the oil pump includes pump core motor and ejector pump, pump core motor is arranged in with the fuel part in the main tank in the engine pipeline and with remaining fuel discharge ejector pump in, bellytank play oil pipe and ejector pump suction port's pipeline intercommunication, ejector pump spouts the fuel into main tank and produces the negative pressure and inhale the fuel in the bellytank in the main tank.
Through adopting above-mentioned technical scheme, pump core motor draws the fuel from main oil tank bottom, and a portion of fuel gets into the engine pipeline, and unnecessary fuel gets into the ejector pump, and ejector pump high-speed spun fuel gets into main oil tank in to in ejector pump exit pipeline production negative pressure with the fuel in the bellytank through bellytank play oil pipe suction and get into main oil tank in, integrated ejector pump has realized drawing the fuel from the bellytank in the oil pump, need not set up independent oil pump in the bellytank, reduced system cost.
Further, the oil pump also comprises a pressure regulating valve arranged at the outlet of the motor of the pump core, and the pressure regulating valve is connected with the engine pipeline and the ejector pump and is used for enabling fuel to enter the engine pipeline and the ejector pump.
By adopting the technical scheme, the redundant fuel discharged by the pressure regulating valve is led into the ejector pump instead of dividing the fuel in the pump core motor into two paths, so that the fuel quantity of the fuel to the engine pipeline is not influenced, and the normal operation of the engine is ensured.
Further, the oil pump also comprises a one-way umbrella valve arranged at the outlet of the ejector pump, and the oil outlet pipe of the auxiliary oil tank is communicated with the pipeline between the ejector pump and the one-way umbrella valve.
Through adopting above-mentioned technical scheme, the design of one-way umbrella valve avoids the oil pump not during operation, and the fuel of main oil tank flows back to the bellytank through bellytank play oil pipe.
Further, an oil pump oil return pipe is arranged on the oil pump, the top end of the oil pump oil return pipe is arranged in the main oil tank, and the bottom end of the oil pump oil return pipe is communicated with the auxiliary oil tank oil return pipe.
Through adopting above-mentioned technical scheme, when the fuel liquid level height in the main tank is higher than the oil pump returns oil pipe height, the fuel in the main tank can enter into the bellytank through the oil pump returns oil pipe under the effect of negative pressure, can use the fuel in the bellytank preferentially, the fuel below the oil pump returns oil pipe height in the main tank of reuse, can make the oil level sensor in the main tank can accurately instruct surplus fuel like this.
Further, the top end of the oil return pipe of the oil pump is arranged at the middle upper part in the main oil tank.
By adopting the technical scheme, the upper end of the oil return pipe of the oil pump is as high as possible, so that the fuel in the auxiliary fuel tank can be preferentially used.
Further, the auxiliary oil tank is provided with an oil filling port, and the oil filling port is arranged in a sealing mode.
By adopting the technical scheme, the auxiliary fuel tank generates negative pressure when fuel is sucked into the main fuel tank to suck redundant fuel or air in the main fuel tank back into the auxiliary fuel tank, so that the fuel in the main fuel tank is prevented from overflowing, and meanwhile, the fuel in the auxiliary fuel tank is prevented from overflowing due to the oil return of the main fuel tank caused by the height difference of the main fuel tank and the auxiliary fuel tank.
In summary, the present utility model comprises at least one of the following beneficial effects: aiming at the asymmetric double-oil-tank structure with the height difference, only one oil pump is needed to be arranged in the main oil tank, and the oil pump is not needed to be arranged in the auxiliary oil tank, so that the system cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Reference numerals illustrate:
1. A main oil tank; 2. an auxiliary oil tank; 21. an auxiliary oil tank oil outlet pipe; 22. an auxiliary oil tank oil return pipe; 23. a fuel filler; 3. an oil pump; 31. a pump core motor; 32. an ejector pump; 33. a pressure regulating valve; 34. a one-way umbrella valve; 35. oil pump returns oil pipe.
Detailed Description
Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model.
The present utility model will be described in further detail with reference to fig. 1.
The embodiment of the utility model discloses a motorcycle double-oil-tank fuel supply system. Referring to fig. 1, a motorcycle double-tank fuel supply system comprises a main tank 1, a sub-tank 2 and an oil pump 3, wherein the sub-tank 2 is provided with a sub-tank fuel outlet pipe 21 for supplying fuel to the main tank 1 and a sub-tank fuel return pipe 22 for returning the main tank 1 to the sub-tank 2, the oil pump 3 comprises a pump core motor 31 and an ejector pump 32, the pump core motor 31 is used for discharging part of fuel in the main tank 1 into an engine pipeline and discharging the rest of fuel into the ejector pump 32, the sub-tank fuel outlet pipe 21 is communicated with a pipeline of a fuel suction port of the ejector pump 32, the ejector pump 32 ejects the fuel into the main tank 1 and generates negative pressure to suck the fuel in the sub-tank 2 into the main tank 1, the arrow direction in the figure is the trend of the fuel, when the auxiliary tank is used, the pump core motor 31 sucks the fuel from the bottom of the main tank 1, a part of the fuel enters the engine pipeline, the redundant fuel enters the ejector pump 32, the fuel sprayed at a high speed enters the main tank 1, and the pipeline at the outlet of the ejector pump 32 generates negative pressure to suck the fuel in the sub-tank 2 through the auxiliary tank fuel outlet pipe 21 and into the main tank 1, the auxiliary tank 3 is not required to be sucked by the auxiliary tank 2, and the cost of the independent ejector system is not required to be reduced, and the fuel pump 2 is not required to be arranged in the separate oil pump 2, and the system is realized.
The oil pump 3 further comprises a pressure regulating valve 33 arranged at the outlet of the pump core motor 31, the pressure regulating valve 33 is connected with the engine pipeline and the ejector pump 32 to enable fuel to enter the engine pipeline and the ejector pump 32, and redundant fuel discharged by the pressure regulating valve 33 is led into the ejector pump 32 instead of dividing the fuel in the pump core motor 31 into two paths, so that the fuel quantity of the fuel to the engine pipeline is not influenced, and the normal operation of the engine is ensured.
Meanwhile, in this embodiment, the oil pump 3 further includes a one-way umbrella valve 34 disposed at an outlet of the ejector pump 32, and the auxiliary oil tank outlet pipe 21 is communicated with a pipeline between the ejector pump 32 and the one-way umbrella valve 34, and the design of the one-way umbrella valve 34 prevents fuel in the main oil tank 1 from flowing back to the auxiliary oil tank 2 via the auxiliary oil tank return pipe 22 when the oil pump 3 is not operated.
The oil pump 3 is provided with an oil pump oil return pipe 35, the top end of the oil pump oil return pipe 35 is arranged in the main oil tank 1, the bottom end of the oil pump oil return pipe 35 is communicated with the auxiliary oil tank oil return pipe 22, in the embodiment, the top end of the oil pump oil return pipe 35 is arranged at the middle upper position in the main oil tank 1, when the fuel liquid level in the main oil tank 1 is higher than the upper end of the oil pump oil return pipe 35, the fuel in the main oil tank 1 can enter the auxiliary oil tank 2 through the oil pump oil return pipe 35 under the action of negative pressure, the upper end of the oil pump oil return pipe 35 is as high as possible, so that the fuel in the auxiliary oil tank 2 can be preferentially used, and the fuel below the height of the oil pump oil return pipe 35 in the main oil tank 1 can be used, so that the fuel level sensor in the main oil tank 1 can accurately indicate the residual fuel.
The auxiliary fuel tank 2 is provided with the fuel filler opening 23, the fuel filler opening 23 is in sealed arrangement, so that the auxiliary fuel tank 2 generates negative pressure when fuel is sucked into the main fuel tank 1 to suck redundant fuel or air in the main fuel tank 1 back to the auxiliary fuel tank 2, the fuel in the main fuel tank 1 is prevented from overflowing, and meanwhile, the fuel in the auxiliary fuel tank 2 is prevented from overflowing due to the oil return of the main fuel tank 1 caused by the height difference between the main fuel tank 1 and the auxiliary fuel tank 2.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (6)
1. A motorcycle double-tank fuel supply system, characterized in that: including main oil tank (1), bellytank (2) and oil pump (3), be equipped with bellytank oil outlet pipe (21) and main oil tank (1) that are used for to main oil tank (1) fuel feeding to bellytank (2) oil return pipe (22), oil pump (3) are including pump core motor (31) and ejector pump (32), pump core motor (31) are arranged in the fuel part in main oil tank (1) in the engine piping and with remaining fuel discharge ejector pump (32), bellytank oil outlet pipe (21) and ejector pump (32) oil suction port's pipeline intercommunication, ejector pump (32) are with fuel blowout entering main oil tank (1) and are produced the fuel in negative pressure will bellytank (2) and inhale in main oil tank (1).
2. The motorcycle dual fuel tank fuel supply system according to claim 1, wherein: the oil pump (3) further comprises a pressure regulating valve (33) arranged at the outlet of the pump core motor (31), and the pressure regulating valve (33) is connected with the engine pipeline and the ejector pump (32) and used for enabling fuel oil to enter the engine pipeline and the ejector pump (32).
3. The motorcycle dual fuel tank fuel supply system according to claim 2, wherein: the oil pump (3) further comprises a one-way umbrella valve (34) arranged at the outlet of the ejector pump (32), and the auxiliary oil tank oil outlet pipe (21) is communicated with a pipeline between the ejector pump (32) and the one-way umbrella valve (34).
4. The motorcycle dual fuel tank fuel supply system according to claim 1, wherein: the oil pump (3) is provided with an oil pump oil return pipe (35), the top end of the oil pump oil return pipe (35) is arranged in the main oil tank (1), and the bottom end of the oil pump oil return pipe (35) is communicated with the auxiliary oil tank oil return pipe (22).
5. The motorcycle dual fuel tank fuel supply system according to claim 4, wherein: the top end of the oil return pipe (35) of the oil pump is arranged at the middle upper part in the main oil tank (1).
6. The motorcycle dual fuel tank fuel supply system according to claim 1, wherein: the auxiliary oil tank (2) is provided with an oil filling port (23), and the oil filling port (23) is arranged in a sealing mode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2023223202271 | 2023-08-28 | ||
| CN202322320227 | 2023-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220849865U true CN220849865U (en) | 2024-04-26 |
Family
ID=90778554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322598537.XU Active CN220849865U (en) | 2023-08-28 | 2023-09-22 | Double-oil tank fuel supply system for motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220849865U (en) |
-
2023
- 2023-09-22 CN CN202322598537.XU patent/CN220849865U/en active Active
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| GR01 | Patent grant | ||
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